Wood-turning machine.



E'. E. SMITH.

WOOD TURNING MACHINE.

APPLICATION FILED MAR. 10, 1913.

1,188,850. Patented June 27,1916.

2 SHEETS-SHEET I.

Edward E. Smi/z/ E. E. SMITH.

WOOD TURNING MACHINE.

APPLICATION FILED MAR 10. 1913.

P11611161 June 27, 1916.

2 SHEETS-SHEET 21 COLUMBIA PLANOGRAPH cm. WASHINGTON, D. c.

EDWARD E. SMITH, OF PROVIDENCE, RHODE ISLAND.

WOOD-TURNING MACHINE.

Application filed March 10, 1913.

To all whom it may concern Be it known that I, EDWARD E. SMITH, a citizen of the United States, and resident of the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in WVood-Turning Machines, the following is a specification.

This invention relates to wood turning machines, of the class adapted to automatically form such articles as shirt buttons, handles, knobs, and kindred articles, and the invention has for its object to provide an improved machine for quickly receiving into a magazine and automatically feeding a plurality of wooden rods to a forming cutter, to rotate each rod rapidly on'its own axis and also to rotate the whole about a common center in order to present them successively to be acted upon by a forming cutter to completely form and sever the articles successively from the rods on which they are formed and dropped by gravity into a suitable receptacle below.

A further object of the invention is to provide means whereby both ends of the rods may be positioned simultaneously into radial recesses in the magazine carrier disks to greatly facilitate loading the same.

The invention further consists of providing simple and effective means for engaging the rods as they revolve and feeding them ahead successively into position to be operated upon.

The invention further consists in providing simple effective and improved means for stepping ahead and repositioning the feeding means at each revolution of the maga zine.

A still further object of the invention is to provide a plurality of tubes arranged circularly in the head through which the individual rods are fed, to mount a driving pulley on each tube and to support said tube 1n bearings at both ends thereof whereby the tube is firmly supported to be rapidly rotated on its own' axis while the carrier head is rotated to move all of the rods about a common center.

A further object of the invention is to provide improved means in the driving head comprising teeth adapted to set into the surface of the work to cause it to positively rotate with its guiding and driving sleeve.

A still further object of the invention is to provide a guide plate in which the ends Specification of Letters Patent.

of which Patented June 27, 1916.

Serial No. 753,167.

of the rods may meet whereby the endwise feeding movement of the rods in the mag. zine will positively engage and abut the ends of the nearly used up rods in the head to continuegto feed the latter forward.

lVith these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

Of the accompanying drawings: Figure 1is a side elevation, partly in section, illustrating my improved wood turning machine. Fig. 2-is an end elevation illustrating the drive for the work carrying head, the forming cutter and also that of the saw. Fig. 3- is an end elevation illustrating the work carrying head, the relative positions of the forming cutter and that of the saw for severing the articles after having been formed. Fig. l's a greatly enlarged plan view, partly in section, showing the relative positions of the work on the work carrying head, the offset forming cutter and the saw. Fig. 5-is a greatly enlarged sectional view through a portion of the rotatable head and one of the work guiding tubes and its driving pulley, also showing in section the guide plate for holding the ends of the rods in alinement one with the other. Fig. 6is a greatly enlarged sectional end view of the guide sleeve showing the incision screw adapted to set into the surface of the wooden rod in the sleeve, whereby the rod is caused to positively rotate with the sleeve while being acted upon by the cutter. Fig. 7is an enlarged sectional side elevation showing one of the magazine orwork carrier plates rotatably mounted in its holder. Fig. 8 is a smaller end view of this magazine plate showing the notches in its periphery in which are carried the wooden rods to be operated upon also showing the hopper located above the same whereby these rods may be fed down into these magazine plates to quickly load the same when desired. Fig. 9is a plan View illustrating the work feeding cam'which engages the rods as they are revolved about the common center in the magazine for feeding them successively forward into position to be operated upon. Fig. l0is a plan view illustrating the relative position of the cam to the work in the magazine when the latter is stepped forward into position to feed the work forward as it again engages the same during the next revolution. Fig. 11-is an end view illustrating the cam for actuating the endwise movable rack for feeding and positioning the work feeding cam at each revolution of the magazine. Fig. 12illustrates the guide plate in section and rigid pin projecting longitudinally from the head to engage a sleeve in said plate to assist in positioning the latter.

Referring to the drawings, 15 designates the bed of the machine which is shown as being supported on suitable legs 16. At one end of this bed is located the head of the machine, the same comprising a head plate 17, see Figs. 1, 3, 4 and 5, which plate is mounted on the forward end of a central driving shaft 18, see Figs. 4 and 12, the rear end of said shaft being supported in the bearing 18 and as being driven through the pulley 19. This head plate has a peripheral bearing at 19, see Fig. 5, in the casing 20, and is provided near its outer edge with a deep circular groove or recess 21, see Fig. 5, to provide both an inner bearing portion 22 and an outer flange bearing 23. This plate is provided with a series oflongitudinal holes 24 spaced apart around near its periphery into each of which holes is set a sleeve 25 having its head portion on the outside of the plate and extending through the space 21 whereby said sleeve is providedwith both an inner and outer bearing in which it is rotatably supported. A pulley 27 is mounted in the re cess 21 on. each of these sleeves and is at tached to the sleeve by means of a set screw 28 or other suitable means, and a belt 29, see Fig. 1, is carried around all of these pulleys, whereby as the head plate is rotated through the main shaft 18 to carry these pulleys around the common center they are themselves rapidly rotated in the opposite direction on their own axis by means of the said belt 29. The inner end of each of these sleeves is provided with teeth in the form of screws 30 extending radially therein, see

. Fig. 6, which screws are adapted to have their ends set into the surface of the wooden rod 31 forming slight grooves or incisions therein. as the rod is fed longitudinally through the sleeve whereby the rod is caused to be positively rotated by its sleeve while being acted upon by the forming cutter.

The forming cutter 32, see Figs. 1, 3 and 4, is mounted on an independent shaft 33 supported in the bearing 34, and is rotated at a rapid speed by a belt 35 in the direction indicated by the arrow. The axis of this cutter is parallel with that of the main shaft 18 but offset from the same, as illustrated in Fig. 3, whereby it engages and operates on a portion of the rods at a time to turn them into the desired shape. After the article has been shaped by this forming cutter it is carried around, as illustrated in Fig. 3, and severed from the end of the rod, by means of the saw 35, which is rapidly rotated on the shaft 30 through the pulley 37 and belt 38,

see Fig. 2, after which the severed article (6 drops by gravity into a receptacle below not shown.

A magazine containing the required number of rods to be operated upon is composed of two plates 39, each of which is provided with a plurality of recesses in its periphery, the number and position of which correspond with that of the sleeves to receive them in the head, each being provided with a blank or extra circular space between the rods as at 41, see Figs. 3, 8 and 10, for the purpose presently described. One of these magazine plates is mounted in a forward bearing frame 42 which is supported on the base of the machine, the same being adapted to be moved longitudinally thereon by hand when it is desired to move it nearer to the projecting ends 43 of the partly used up rods 31. The other magazine plate is mounted to rotate freely in the rear bearing frame 44. .Both of these frames 42 and 44 are provided with recesses as illustrated at 45 in Fig. 8, whereby the rods 46 in the hopper 47 may be fed through these recesses 45 and.

dropped bodily into the notches 40 as fast as they are presented by the rotation of the machine. YVhen the magazine is thus positioned and rotated, the time of loading it is reduced to the minimum. After all of these recesses have been filled the rods are re tained in the hopper by means of hooks 48 at either end which are swung inward to re tain them, and the rods are retained in the magazine plates as they rotate by their respective frames 42 and 44 in which they rotate. Both of these magazine plates are loosely mounted on the main shaft 18 and are rotated thereby through a feather key in time with the head plate 17. As soon as the magazine has been loaded the same is moved forward until the ends 50 of its rods engage the corresponding ends 43 of those partly used. a

In Figs. 1, 9 .and 10 I have shown a cam 49 as mounted on and carried by the magazine frame 44, said cam being set in the position illustrated in Figs. 9 and 10 whereby as the rods are rotated in the magazine their ends successively engage the face of this cam and are forced or fed inward the length necessary to provide sufficient wood from which the button or other article may be formed, see Figs. 4 and 5. In order that this cam 49 may be carried forward the required distance after each revolution of the magazine I have provided a rack 51 adapted to be moved endwise by means of the cam 32 on. the pulley 19 which engages the arm 53 of the bell crank lever 54, the downwardly extending arm being pivotally connected at 55 to the end of saidrack. The

lower end 53 of a spring pressed pin 52 is shown as being mounted in the frame 44 and arranged to engage the teeth of the rack 51 whereby said frame 44 is moved forward the required distance at each forward movement of the rack. These forward movements of the frame are so timed that they will occur when the space 41 is presented opposite the cam 49, by which arrangement the fresh rods in the magazine are fed forward step by step forcing the partly used rods 31 through their respec tive sleeves until they are entirely used up, the ends of the fresh rods then presenting themselves to the cutters to be formed into the articles and when these latter rods have been nearly used the frames holding the magazine plates are moved by hand back into position to be loaded again and so the operation is repeated as fast as each set of rods is used.

An essential feature in the practical operation of my invention is the provision of a comparatively thick guide plate 56, see Figs. 1, 5 and 12, the same being loosely mounted on the shaft 18 to rotate therewith and provided with holes 57 registering with those in plates 39 and head 17, the same being positioned near the outwardly extending free ends 43 of the partly used rods 31 and serves to retain these overhanging ends in their relative positions and prevent them from springing away or to one side when the ends 50 of the fresh rods are brought up to abut against them. Or in some cases this plate is moved outward into the position illustrated in Fig. 5, whereby it will guide both the ends 34 and 50 to positively abut one against the other. This guide plate as before stated is loosely mounted on the main shaft and in order to assist in positioning it so that its holes will register more perfectly with the unsupported ends 43 of the used rods I have inserted a forwardly extending tapered mouth tube 58, see Fig. 12, and have also provided an outwardly extending pin 59 adapted to readily enter this tube 58 to assist in centering the plate to readily receive the ends of the rods.

lVhile I have illustrated and described a preferred embodiment of the invention, I am aware that the same may be carried out in many other forms and with many modifications without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to all the details of construction shown and described.

I claim:

1. In a wood-turning machine, a head plate for carrying a series of rods to be turned, means for rotating said head plate, means for rotating said rods in said head plate, a forming cutter, magazine plates rotatable in unison with said head plate and provided with means for supporting rods,

in alinement with the rods in said head plate, and means periodically engaged by one end of each rod for advancing said rods one after another from said magazine plates into said head plate.

2. In a wood turning machine, a head plate for carrying a series of rods to be turned, means for rotating said head plate, means for rotating said rods in said head plate, a forming cutter, magazine plates rotatable in unison with said head plate and provided with means ,for supporting rods, in alinement with the rods in said head plate, and a relatively fixed cam set to engage the end of each rod in said magazine plates successively as presented thereto to advance them from said magazine plates to said head plate.

3. In a wood turning machine, a head plate provided with openings to receive rods to be operated upon, means for rotating said head plate, means for rotating said rods in said openings, magazine plates mounted to rotate in unison with said head plate and provided with openings in alinement with the openings in said head, a cam carried by one of said magazine plates for engaging one end of each rod to feed the rods in said magazine plate successively forward against the rods in said head plate whereby the latter are moved in position to be operated upon.

4. In a wood turning machine, a head plate for carrying the rods to be turned, means for rotating the rods in said plate, a forming cutter, rotatable magazine plates for receiving and carrying the rods, a relatively fixed cam set to engage the ends of said rods as they are successively presented thereto by said rotating plates for feeding said rods forward, and means for moving said cam intermittently forward at each revolution of the magazine.

5. In a wood turning machine, a head plate for carrying the rods to be turned, means for rotating the rods in said plate, a forming cutter, rotatable magazine plates for receiving and carrying the rods, and a relatively fixed cam set to engage the ends of said rods as they are successively presented thereto by said rotating plates for feeding said rods forward, and means for moving said cam and rear magazine plate forward at each revolution of the magazine.

6. In a wood turning machine, a head plate carrying rods to be operated upon, means for rotating said head, means for rotating said rods in said head plate, magazine plates, means for rotating said magazine plates in unison with said head plate, said magazine plates having means for supporting rods, in alinement with the rods in said head plate, a cam for moving said rods from said magazine plate in said head plate, and means for moving said cam and one of said magazine plates forward at each revolution of said magazine.

7. In a wood turning machine, a head plate for receiving a plurality of rods to be operated upon, means for rotating said head plate, means for rotating said rods in said head plate, magazine plates having rod-receiving openings therein in alinement with the rods in said head plate, means for rotating said magazine plates in unison with said head plate, means for retaining said rods in said openings, and means for feeding said rods successively forward from said magazine plates into said head plate, and means for imparting a step by step movement to one of said magazine plates.

8. In a wood turning machine, a head plate, rods carried by said head plate to be operated upon, means for rotating said head plate, means for rotating said rods in said head plate, magazine plates, means for rotating said magazine plates in unison with said head plate, said magazine plates having means for supporting rods in alinement with the rods in said head plate, a guide member disposed between said head plate and said magazine, and means for feeding said rods successively forward from said magazine plate through said guide into said head plate.

9. In a wood turning machine, ahead plate to receive rods to be operated upon, means for rotating said head plate, means for rotating said rods in saidhead plate, a stationary magazine plate, a longitudinal movable magazine plate, means for rotating said magazine plates in unison with each other and with said head plate, said magazine plates having means for supporting rods, magazine plates in alinement with the rods in said head plate, means for feeding said rods successively forward from said magazine plates in the said head plate, and means for imparting forward movement to said movable magazine, plate at each revolution thereof. 7

In testimony whereof I aifix my signature in presence of two witnesses.

EDWARD E. SMITH.

Witnesses:

HOWARD E. BARLOW, E. I. OGDEN;

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of intents,

Washington, D. G." 

